Cyrus a



(No Model.)

0. A. TAPT. STOP MOTION FOR DRAWING FRAMES.

Patented Nov. 8,1892! INYENTUE:

1 UNiTED STATES:

PATENT OFFICE.

CYRUS A. TAFT, OF WHITINSVILLE, MASSACHUSETTS, ASSIGNOR TO THE VVHITINMACHINE WORKS, OF SAME PLACE.

STO P-MOTION FOR DRAWING-FRAM ES.

SPECIFICATION forming part of Letters Patent No. 48 5,997, datedNovember 8, 1892.

Application filed March 8, 1892. Serial No. 424,206. (No model.)

To a, whom it 12mg concern.-

Be it known that I, CYRUS A. TAFT, of Whitinsville,in the county ofWorcester and State of Massachusetts, have invented a new and usefulImprovement in Stop-Motions for Drawing-Frames; and I hereby declarethat the following is a full, clear, and exact description of the same,reference being had to the accompanying drawings, forming part of thisspecification.

This invention has reference to an improvement in an auxiliary stopadapted to operate the stop-motion of a drawing-frame when the can intowhich the sliver is delivered is full.

The object of the present invention is to so construct the auxiliarystop-motion that the slightest lifting of the coiler will operate thestop-motion. 1

To this end the invention consists in the peculiar and novelconstruction of the detectorlever and a nearly-counterbalancedstop-lever by which the movement of the interfering-stop is increased,as will be more fully set forth hereinafter.

Figure 1 is an end elevation, partly in section, of my improvedauxiliary stop-motion, shown in connection with the usual trumpetstop-motion. Fig. 2 is a top view of the same, part of the top platebeing shown as broken away and other parts indicated in broken lines.

Similar numbers of reference indicate corresponding parts throughout.

1n the drawings, 3 indicates the drawingframe proper; 4, the upper endof the rovingcan; 5, the coiler-disk, supported in the usual mannerabove the roving-can; 6, the coilertube through which the sliver isdelivered; 7 7, the delivery-rolls, supported at opposite ends injournal-bearings. 8 indicates one of the two end brackets secured to thedrawing-frame, extending forward over the roving-can, and supporting thedelivery-rolls.

9 is the top plate by which the deliveryrolls are covered.

10 is the trumpet through which the sliver passes on its way from thedrawing to the delivery rolls. The trumpet is supported in a pivotedlever, at one end of which is the stop 11, which when the sliver breaksdescends and prevents the oscillation of the finger 12, secured to therock-shaft 13, operated by the rod 14, connected to an arm secured tothe rock-shaft 13 at one end and to the operating and shipper mechanismat the other end.

The mechanism so far described is old and forms no part of my presentinvention, which consists in placing on the rock-shaft 13 the finger 15,so that it will oscillate or vibrate with the rock-shaft. To thedrawing-frame the arm 16 is secured, the outer end of which is providedwith the journal-bearing 17, in which the lever 18 is pivoted. Theforward end of this lever is provided with the downwardly-projectingpoint or rider 19, which bears on the upper surface of the coiler-tube6. This rider is made with the inclined sides shown in Fig. 1 andextends slightly beyond the inner edge of the coiler. The end 20 of thelever 18 extends toward the drawingframe and bears on the pin 21 of thestop-lever 22, pivotally supported on the pin 23, secured to andprojecting from the arm 16. The stop-lever 22 is provided at the forwardend with the hook 24 and at the other end with the counterbalance 25.

The operation of this auxiliary stop-motion is as follows: In the normalcondition while the sliver is delivered and coiled in the can theheavier end of the lever 18 rests on the coiler-tube 6, the end-2O ofthis lever, bearing on the pin 21, supports the stop-lever 22 in theposition shown in the drawings, with the hook 24 clear above thevibrating finger 15. When the can is full, and even a slight lifting ofthe coiler takes place, the forward end of the lever 18 is slightlyraised. This motion is multiplied by the longer end 20 of the lever,which descends through a greater distance. The pin 21, and with it thestop-lever 22, follows the descent and multiplies the movement, becausethe hook 2 1is farther from the fulcrum or pivot 23 than the, pin 21.The hook 24 therefore descends and passes in front of the finger 15, andby stopping the vibration of the same arrests the motion of therockshaft 13, thus causing the shipper and stop mechanism of thedrawing-frame to operate in the same manner as if the stop 11 had comein front of the finger 12.

Shonldt-he sliver from any cause cease to 10 Patent- The combination,with the rock-shaft of a drawing-frame stop-motion and the coiler, of apivoted lever having at one end a rider the inclined sides of whichextend within the circumference of the coiler, the lower edge of 15 therider bearing on the 'coilcr', the other and longer end of said leversupporting a pivoted stop-arm, and an auxiliary finger secured to therock-shaft, the Whole adapted to arrest the motion of the rock-shaftwhen the rider 20 is lifted, as described.

In witness whereof I have hereunto set my hand.

CYRUS A. TAFT.

lVitnesses:

J. A. MILLER, J r., HENRY J. MILLER.

